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Stabilized Lagrange multiplier methods for bilateral elastic contact with friction
Chalmers University of Technology.
Jönköping University, School of Engineering, JTH. Research area Product Development - Simulation and Optimization.
2006 (English)In: Computer Methods in Applied Mechanics and Engineering, ISSN 0045-7825, E-ISSN 1879-2138, Vol. 195, no 33-36, 4323-4333 p.Article in journal (Refereed) Published
Abstract [en]

In most finite element (FE) codes contact is checked only at the nodes, corresponding to the use of pointwise constraints. However, this approach might not be stable in case the bodies coming into contact have non-matching grids at the contact interface. To alleviate this problem, we propose a stabilized Lagrange multiplier method, based on a global polynomial multiplier, for the finite element solution of (non)linear elastic contact problems with non-matching grids. In particular, our approach allows us to avoid integrating products of different finite element basis functions on the surface meshes at the contact zone.

Place, publisher, year, edition, pages
2006. Vol. 195, no 33-36, 4323-4333 p.
Keyword [en]
contact, non-matching grids, stabilized Lagrange multipliers, friction
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hj:diva-15830DOI: 10.1016/j.cma.2005.09.008ISI: 000237969900026OAI: oai:DiVA.org:hj-15830DiVA: diva2:440320
Available from: 2011-09-12 Created: 2011-08-16 Last updated: 2012-02-07Bibliographically approved

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Hansbo, Peter
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